PCB Technical - Proofing speed of pcb circuit board manufacturers

In the production process, the multilayer PCB board will have different inner codes, which must be distinguished by different codes during the production process, and different production process cards are used to control the production progress. erPCB is the transf and handover of auxiliary products through the production of batch cards (LotCard), commonly known as excess. Due to the large number of online products and the complicated models, it requires simple, fast, and fault-tolerant operations for counting operations, scrapping operations, and repairing operations.

In the implementation process, general-purpose ERP products are basically unable to deal with the business of separate coding, separate over-numbering, separate scrapping, and separate replenishment of the inner and outer layers.

Generally speaking, the more detailed the production operation plan, the richer and more valuable the information it gives, and the more difficult it is to calculate it accordingly. The rougher the production plan, the less information and the lower the value. However, the process flow involved in PCB is often more complicated. The engineering data and MI production of a complex PCB multilayer board often takes a long time to complete, and the delivery time required by customers is often very tight.

The key competitive advantage of PCB* lies in: engineering research and development, production management, material control, manufacturing, outsourcing processing, etc., especially the WIP (work in process) control of on-site production management. If WIP is not properly controlled, there will be many mismanagement phenomena such as mismanagement, loss, stagnation, inaccurate WIP quantity, delayed replenishment, increased number of line changes, and unclear delivery dates.

The PCB industry has a wide variety of products, which are generally distinguished based on the number of layers, including single-sided, double-sided, four-layer, eight-layer, and ten-layer boards. The processing materials, process flow, process parameters, testing methods, quality requirements, etc. of PCB products will all issue processing instructions to the production department and outsourcing units through the preparation of production instructions (MI).

For PCB products with four-layer boards and below, the process flow is relatively simple, and the production process card can be completed from the beginning to the end, and there is no need to convert the process or replace the process card in the middle. As for the blind and buried vias products with more than six-layer boards, because different inner and outer layers have different circuit diagrams, process flow or process parameters, and use different molds, film and other auxiliary equipment, different productions are required. Instructions and related documents will also produce different production process cards during the production process to control the manufacturing process and quantity of different inner and outer layers.

PCB industry has entered a stage of sustained and stable growth